CN202499660U - Load lifting limiter - Google Patents
Load lifting limiter Download PDFInfo
- Publication number
- CN202499660U CN202499660U CN2012201103815U CN201220110381U CN202499660U CN 202499660 U CN202499660 U CN 202499660U CN 2012201103815 U CN2012201103815 U CN 2012201103815U CN 201220110381 U CN201220110381 U CN 201220110381U CN 202499660 U CN202499660 U CN 202499660U
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- CN
- China
- Prior art keywords
- sensor
- controller
- load lifting
- lifting limiter
- utility
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a load lifting limiter. The load lifting limiter comprises sensors, wherein the sensors are arranged at the upper end of a static rope of a crane, a controller is arranged on one side of the sensor, and an infrared probe is arranged at the lower part of the controller and is aligned with a crane hook. The sensor comprises a gravity sensor and an angle sensor; the gravity sensor is a resistance strain type sensor; the controller is provided with a display screen; and the controller is connected with an outer power supply and a control relay. The load lifting limiter disclosed by the utility model is convenient to install and use, is of low cost, effectively prevents various accidents caused by overload of a lifted object, too high lifting height of the lifted object and overlarge diagonal angle of the lifted object.
Description
Technical field
The utility model relates to the crane safety device, particularly relates to a kind of load lifting limiter.
Background technology
In workshop, harbour, warehouse, various hoisting cranes have fast, the easy to operate and low cost and other advantages of hoisting heavy, have improved production efficiency greatly; Alleviated working strength of workers, because its outstanding advantage makes its use more and more general; But because the problem and the workman's misoperation that exist on its structure often take place because lifting weight overload and lifting altitude are too high in actual use, weight tiltedly draws and has an accident; Cause casualties and device damage; Therefore, when existing hoisting crane is worked, exist huge potential safety hazard.
The utility model content
To above-mentioned deficiency of the prior art, it is a kind of simple in structure, easy for installation that the utility model provides, and effectively prevents weight overload and the load lifting limiter that lifting altitude is too high, weight tiltedly draws.
The technical scheme that the utility model is taked is:
A kind of load lifting limiter comprises the sensor that is arranged on the quiet rope of hoisting crane upper end, and sensor one side is provided with controller, and infrared probe is arranged on the bottom of controller, aims at crane hook.
Said sensor comprises: weight sensor and angular transducer; Said weight sensor is a resistance strain type sensor; Said controller is provided with read-out; Said controller is connected with external source and control relay.
The beneficial effect of the relative prior art of the utility model:
The utility model load lifting limiter, easy to install, cost is low, effectively prevent owing to lifting weight overload and lifting altitude is too high and weight tiltedly draws the excessive various accidents that take place of angle.
Description of drawings
Fig. 1 is the utility model load lifting limiter mounting structure scheme drawing.
Major part nomenclature in the accompanying drawing:
Among the figure:
1, quiet rope 2, sensor
3, read-out 4, infrared probe
5, D3 type power supply 6, controller.
The specific embodiment
Accompanying drawing 1, a kind of load lifting limiter comprises the sensor 2 that is arranged on the quiet rope of hoisting crane 1 upper end, and sensor 2 one sides are provided with controller 6, and infrared probe 4 is arranged on the bottom of controller 6, aims at crane hook (not shown).
Said sensor 2 comprises: weight sensor and angular transducer; Said weight sensor is a resistance strain type sensor; Said controller 6 is provided with read-out 3; Said controller 6 is connected with external source and control relay, and external source is a D3 type power supply.
The external 380V power supply of A1 among the figure; The external control relay of B1.
When the utility model used, sensor 2 was fixed on the upper end of the quiet rope 1 of hoisting crane, made infrared probe 4 aim at crane hook (not shown); Behind the crane weight, sensor 2 pressurizeds and producing and the directly proportional voltage millivolt signal of weight amplify through amplifier; Carry out A/D and convert numeral to, the micro controller system that is input in the controller 6 is handled, and is sent to read-out 3 and shows; Meanwhile micro controller system compares weight of measuring and the rated load that presets, and when finding that weight weight reaches rated load, controller 6 sends chimes of doom and reminds operating personal to note; At last when reaching immediately alarm set point, except that sending continuous alarm sound, controller 6 sends signal to relay; Relay cuts off hoisting crane contactless for hoisting power supply immediately; Hoisting crane stops to dangerous direction operation, but does not influence other structure actions, to reach the limit for tonnage protective effect; After suspension hook was raised to a ground level, infrared probe produced signal via controller 6 and sends signal to relay, and relay cuts off hoisting crane contactless for hoisting power supply immediately, prevented that suspension hook from rushing to summit, and damaged hoisting crane.When angular transducer judges that the center stand column inclination is spent above 14, send signal to controller, relay cuts off the contactless switch power supply.
The utility model load lifting limiter, easy to install, cost is low, prevent effectively that because lifting weight overload and lifting altitude are too high weight tiltedly draws and the various accidents that take place.
Claims (4)
1. load lifting limiter is characterized in that: comprise the sensor that is arranged on the quiet rope of hoisting crane upper end, sensor one side is provided with controller, and infrared probe is arranged on the bottom of controller, aims at crane hook.
2. according to the said load lifting limiter of claim 1, it is characterized in that: said sensor comprises: weight sensor and angular transducer.
3. according to the said load lifting limiter of claim 2, it is characterized in that: said weight sensor is a resistance strain type sensor.
4. according to the said load lifting limiter of claim 1, it is characterized in that: said controller is provided with read-out; Said controller is connected with external source and control relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201103815U CN202499660U (en) | 2012-03-22 | 2012-03-22 | Load lifting limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201103815U CN202499660U (en) | 2012-03-22 | 2012-03-22 | Load lifting limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202499660U true CN202499660U (en) | 2012-10-24 |
Family
ID=47036280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201103815U Expired - Fee Related CN202499660U (en) | 2012-03-22 | 2012-03-22 | Load lifting limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202499660U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105776028A (en) * | 2016-03-24 | 2016-07-20 | 中国十七冶集团有限公司 | Overload warning control device of mechanical lifting equipment |
-
2012
- 2012-03-22 CN CN2012201103815U patent/CN202499660U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105776028A (en) * | 2016-03-24 | 2016-07-20 | 中国十七冶集团有限公司 | Overload warning control device of mechanical lifting equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121024 Termination date: 20150322 |
|
| EXPY | Termination of patent right or utility model |